Combined operator and lock for windows and the like



Dec. 9, 1952 LANGSETH 2,621,063

COMBINED OPERATOR AND LOCK FOR WINDOWS AND THE LIKE.

Filed April 21, 1949 INVENTOR. fi/vaesw 4mm 66? MLM, 4M

ATTOENEV5 Patented Dec. 9, 1952 UNITED STATES ATENT OFFICE COMBINEDOPERATOR AND LOilK FOR WINDOWS AND THE LIKE 8 Claims.

This invention relates to a combined operator and lock for windows andthe like.

It is a primary object of the invention to provide an operator which isboth reciprocable and rotatable, the reciprocating movement beingcommunicated to an operated part for the adjustment thereof, and therotative movement being used to lock and unlock the operator, so thatfull control, both for locking and unlocking, and adjustment, isachieved through the use of one hand.

Other objects of the invention can best be described in connection withthe following disclosure of the details thereof.

In the drawings:

Fig. 1 shows the operator in plan as applied to a Window sash, the sashand its casing being shown in section.

Fig. 2 is an enlarged detail view of the operator, portions thereof, andportions of the lock, being shown in longitudinal horizontal section.

Fig. 3 is an enlarged detail view taken in transverse section on theline 33 of Fig. 2.

Fig. 4 is an enlarged detail view taken in transverse section on theline 4--4 of Fig. 2.

Fig. 5 is a detail view in perspective showing in mutually separatedrelationship the component parts of the device.

While my invention is applicable to many devices other than theadjustment of window sash, it has particular application to window sashadjustment and will be disclosed as a window sash adjuster, by way ofexempliflcation.

The sash 1 is hinged at 8 to its frame 9. It is desirable that the sashbe adjustable almost instantly between its open and closed positions,being movable with more freedom than is possible with any crankarrangement, and yet lockable in any position throughout its range ofadjustment, preferably by manipulation of the same handle used in theadjustment operation, so that but one hand of the person manipulatingthe device can perform both the adjusting and the locking functions.

The bracket it is connected with the sash E. To it is pivoted by meansof the vertical bolt H a swivel fitting I2 which has a socket at 13 inwhich the turned end IA of bar section I5 is rotatable, being anchoredin the socket by a cross pin l6 which engages a channel ll turned in thecylindrical portion is of the bar. Any other swivelling arrangementwould be appropriate at this point.

The operating bar comprises a section it having terminal clevis at I9connected by pin 20 2 with a tongue 2| in the end of section it. Thus,the sections 15 and 13, which are desirably alike in cross section, arein pivotal connection with each other.

Both of the parts [5 and it have like noncircular contours in transversecross section. Desirably, each is nearly square in transverse crosssection, being completely square except for the fact that each of itscorners 22 is slightly rounded as shown in Figs. 3 and 4.

Connected to some portion of the window frame, either the sill, or theside, or the top of the frame, is a bracket 23 to which is pivoted thecylinder 25 which has an integral post portion 24 rotatably mounted inbracket 23 and secured by one or more nuts 25. Rotatably mountedcentrally of the cylinder is a collar 2? having an opening at 28 whichis square, or of other non-circular contour to fit the cross section ofthe operating bar l8 so that rotation of the bar will necessarily becommunicated to the collar 2'1. The opening 28 Will be noted in Fig. 4to be slightly ofi center with respect to the axis of the cylinder 25.While the exact dimensions are not critical, I have found it appropriateto have the center of the opening 23 on a center line 29 which is .015inch laterally offset from the center line of the cylinder or sleeve:25.

Fixed in the ends of the cylinder or barrel 25 are one or morestationary collars, two being shown at 3!, 32. These may be soldered orWelded or merely secured by pressed fit within the barrel to benon-rotatable therein and to confine the rotatable collar Z'l againstaxial displacement. Each fixed collar or collars 3! and 32 is providedwith a bore 33 which is desirably cylindrical. If two collars are used,they may be identical, and the bores are aligned on a center in thefixed plane indicated at iii in Fig. 3. When the rotatable collar 21 isin the position shown in Fig. 4, its plane 29 will register with thefixed plane 34.

When the two sections I 5 and [8 of the operating bar are aligned asshown in Figs. 2 and 5, and in full lines in Fig. 1, they will movefreely in an axial direction through the registering cylindrical holes33 of collars 3| and 32 and the intervening square hole 28 of therotatable collar 21, so long as the rotatable collar is in the positionshown in Fig. t. Thus, the handle 35 at the end of the bar may be usedto draw it in or out and thereby to close or open the sash *1. With thesash fully closed, the end of the bar would project into the livingquarters but for the fact that the hinged joint provided by pintle 3 20between the sections and 18 of the bar permits the bar section [8 to befolded to overlie the window sill as indicated in dotted lines in Fig.1.

In any desired position of the bar to which it may be adjusted in theopening or closing of the sash, the handle 35 may be used to rotate thebar upon its axis, carrying with it the collar 21 to which it issplined. However, as the bar rotates, the polygonally cross sectionedopening 28 in the rotatable collar 21 would, but for the strength of barI8, tend to move out of axial registry with the round openings 33 in thefixed collars 3| and 32. Since the strength of the bar and its close fitin the openings provided in the several collars holds the opening 8 insubstantial alignment with openings 33, the efiect of the rotation is totend to move the rotatable collar 21 eccentrically within itscylindrical bearing in the barrel 25. If the ofiset of the openings fromthe axis of the barrel were substantial, the bar would not rotate atall, Since the offset is minute, there will be, despite the closebearingfit of the parts, a considerable angular rotation, in the courseof which the bar becomes tightly wedged in the stationary collar orcollars so it cannot move further in the direction of rotation, nor canit move axially. The parts are, thereupon, completely locked, and thesash or other operate-d part will be held securely in its adjustedposition. Yet, the slightest pressure in a converse direction ofrotation will free the wedging action and leave the bar completelyfreefor instant sliding adjustment to any desired position, such adjustmentbeing efiected with the same hand with which the unlocking isachieved.

Regardless of the polygonal shape of the bar in cross section, therounding of its corners provides for it a substantially cylindricalbearing surface fitting the cylindrical openings 33 in the stationarycollars, and a non-circular bearing surface which is complementary tonon-circular bearing surfaces of openin 28 in the rotatable collar, anysplined connection bein suitable.

Iclaim:

1. An adjusting and locking device operable with one hand, said devicecomprising a reciprocable and rotatable operating bar provided with anoperating handle by which it may be moved longitudinally and rotatably,at least one fixed bearing member providing a guide surface closelyfitted to said bar and within which said bar is guided for reciprocationand rotation upon a redetermined axis, and a complementary collar insplined connection with the bar to rotate therewith, said collar havinga bearing in which it is rotatable upon an axis slightly ofiset from theaxis of rotation of the bar, said fixed bearing member and said collarbearing having a common mounting in which reactive forces are devel opedwhereby rotation of the bar will wedge the bar against longitudinalreciprocation through said member.

2. A device of the character described-comprising a pair of bearinmembers relatively fixed against rotation and against reciprocation,said members having aligned bores and being mutually spaced, a barclosely fitted within the bores and reciprocable through said membersand rotatable in the bores on an axis defined by the bores, a collarsplined to said bar and confined between said members, the splinedconnection of the collar with the bar permitting independentlongitudinal movement of the bar while constraining the collar and barto rotate unitarily;

and a bearing element in which said collar is rotatable, said bearingelement and collar having mutually contacting bearing surfaces slightlyeccentric respecting the axis upon which the bar is longitudinallyreciprocable and rotatable, whereby rotation of the bar will tend toshift the bar axis thereby binding the bar against the bore surfaces ofsaid fixed members and reactive force will tend to cause said eccentricsurfaces to lock thereby wedging the bar against reciprocation, theopening in the collar being, in another rotative position of the collarand bar, substantially aligned with the openings of said bearingmembers, whereby the bar is reely reciprocable through said members.

3. The device of claim 2 in which the bar comprises hingedly connectedsections, both having cross section contour adapted to pass the openingsof said members, and a pintle connecting said sections and disposedwithin said contour.

4. The device of claim 2 in which said bar'has a swivelled terminalconnection for transmitting its longitudinal reciprocation whileaccommodatll'lg its rotation on its axis for locking and unlockingthe-bar.

5. A device of the character described comprising the combination with amounting barrel and a collar rotatable therein and having a polygonalopening having an axis slightly offset from the axis of rotation of thecollar, an operating 'bar of polygonal cross section fitting the openingln the collar, said bar being rotatable with the collar andlongitudinally reciprocable through said opening, and a pair ofmem-bersclosing the ends of the barrel and provided with openings having axesslightly offset from the axis of rotation of said collar and in whichopenings the bar is rotatable and longitudinally reciprocable, the barbeing closely fitted to said openings, th said members beingsubstantially secured against rotation respecting the barrel, wherebyrotation of the bar will tend to cause the collar only to rotate in thebarrel and to displace the opening of the collar from registry with theopenings of said members, thereby locking said collar within the barreland locking saidbar against reciprocation respecting said members.

6. A device of the character described coniprising the combination witha pair of brackets, of an operating bar having a swivelled terminalfitting connected with one of the brackets, the other bracket providinga bore through which said bar extends, a collar rotatable in the boreand splined to said bar to partake of the rotative position of the barwhile accommodating free axial movement of the bar, the axis of theopening in the collar being slightly offset from the axis of rotation ofthe collar in the barrel, and at least one member fixed to the barreland having an opening in which said bar is closely confined for freerotative and axial movement, the axis of the opening through the memberbeing ofi set from the axis of collar rotation, and the opening of thecollar being adapted, in one rotative position of the collar, foralignment with the opening through the said member, rotation of the barand collar disaligning the saidopenings and clamping the bar againstreciprocation respecting the member.

7. The device of claim 6 in further combination with a second memberopposed to the first member at the opposite end of the barrel, thecollar being disposed between said members, and thesecond member havingan opening similar in form andposition to theopening in thefirst'REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Number Name Date Hess Jan. 2, 1923 MorrisApr. 23, 1929 Belanger July 22, 1930 DeVries July 4, 1939 FOREIGNPATENTS Country Date Great Britain Mar. 12, 1898

